NYC-WTC_000232496

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC 104 E 25th Street, 10th Floor New York, NY 10010 Tel. 212-353-8280 Fax 212-353-8306

REPORT DATE: 08-02-02

CLIENT; Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS Rooms 501, 501A, 231

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE 08-01-02 DATE RECEIVED: 08-02-02 DATE ANALYZED: 08-02-02

SAMPLE MEDIA: Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (gg/m’) (pg/tn’)

01 20857 Inside Rm 501A by Entrance to Corridor <3.7 3.7

02 20857 Inside Rm 501 by Entrance to Corridor <3.7 3.7

03 20857 Inside Rm 231 by Entrance to Corridor <5.0 5.0

04 20857 Inside Rm 501A by Entrance to Corridor <3.2 3.2

05 20853 Inside Rm 501 by Entrance to Corridor <3.9 3.9

06 20857 Inside Rm 231 by Entrance to Corridor <3.3 3.3

FBL-1 20857 Field Blank <1-5 pg 1-5 pg

FBL-2 20857 Field Blank <U5 pg 1.5 pg

NOTE 1: THE REPORTING LIMIT (RL) IS 3.0 pg NOTE 2: At the present time there are no regulatory levels or requirements for indoor airborne lead in area samples. However, OSHA has established an action level of 30 pg/m^ and a permissible exposure level (PEL) of 50 pg/'m^ for personal samples. NOTE 3; Blank units are in pg

CITY_21MC100_0 10245496

NYC-WTC_000232496